Athlon Helos BTR 1-4.5x24 Features The Athlon Helos BTR 1-4.5x24 utilizes advanced fully multi-coated lenses to enhance light transmission delivering optimal brightness and true color clarity across the visible spectrum. As a capable 1-4.5x24 AR rifle scope it features exposed turrets with 23 MOA adjustment per rotation and a revolution locking system that prevents dialing beyond one full turn from zero. The precision zero stop system allows a sharp and repeatable return to your established zero position. Built with argon purging and waterproof construction this optic maintains internal clarity and reliable performance in adverse weather conditions. Athlon Helos BTR 1-4.5x24 Specifications Manufacturer: Athlon Model: Helos BTR 1-4.5x24 Category: Rifle Scope Magnification: 1-4.5x Objective: 24mm Reticle: ATSR3 MOA SFP Illuminated Tube Diameter: 30mm Turrets: Exposed Click Value: 0.25 MOA Adjustment Per Rotation: 23 MOA Total Elevation Adjustment: 80 MOA Total Windage Adjustment: 80 MOA Eye Relief: 3.2 Field of View at 100 Yards: 100-22 ft Parallax Adjustment: Side Focus 10 yds-Infinity Purging Material: Argon Length: 9.5 Weight: 22.9 oz